diff --git a/app/src/main/java/com/uiui/videoplayer/activity/MainActivity.java b/app/src/main/java/com/uiui/videoplayer/activity/MainActivity.java
index b42eb50..1960105 100644
--- a/app/src/main/java/com/uiui/videoplayer/activity/MainActivity.java
+++ b/app/src/main/java/com/uiui/videoplayer/activity/MainActivity.java
@@ -242,6 +242,7 @@ public class MainActivity extends AppCompatActivity {
             if (file.exists()) {
                 LinkedList<File> list = new LinkedList<File>();
                 File[] files = file.listFiles();
+                if (files == null) return null;
                 for (File file2 : files) {
                     publishProgress(file2.getAbsolutePath());
                     if (file2.isDirectory()) {
@@ -256,6 +257,9 @@ public class MainActivity extends AppCompatActivity {
                 while (!list.isEmpty()) {
                     temp_file = list.removeFirst();
                     files = temp_file.listFiles();
+                    if (files == null){
+                        continue;
+                    }
                     for (File file2 : files) {
                         publishProgress(file2.getAbsolutePath());
                         if (file2.isDirectory()) {
@@ -353,7 +357,6 @@ public class MainActivity extends AppCompatActivity {
     }
 
 
-
     @Override
     public boolean onOptionsItemSelected(MenuItem item) {
         //返回按钮点击事件
diff --git a/app/src/main/res/mipmap-hdpi/ic_launcher.png b/app/src/main/res/mipmap-hdpi/ic_launcher.png
index 0b9593a..451628b 100644
Binary files a/app/src/main/res/mipmap-hdpi/ic_launcher.png and b/app/src/main/res/mipmap-hdpi/ic_launcher.png differ
diff --git a/app/src/main/res/mipmap-mdpi/ic_launcher.png b/app/src/main/res/mipmap-mdpi/ic_launcher.png
index 0b9593a..451628b 100644
Binary files a/app/src/main/res/mipmap-mdpi/ic_launcher.png and b/app/src/main/res/mipmap-mdpi/ic_launcher.png differ
diff --git a/app/src/main/res/mipmap-xhdpi/ic_launcher.png b/app/src/main/res/mipmap-xhdpi/ic_launcher.png
index 0b9593a..451628b 100644
Binary files a/app/src/main/res/mipmap-xhdpi/ic_launcher.png and b/app/src/main/res/mipmap-xhdpi/ic_launcher.png differ
diff --git a/app/src/main/res/mipmap-xxhdpi/ic_launcher.png b/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
index 0b9593a..451628b 100644
Binary files a/app/src/main/res/mipmap-xxhdpi/ic_launcher.png and b/app/src/main/res/mipmap-xxhdpi/ic_launcher.png differ
diff --git a/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png b/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
index 0b9593a..451628b 100644
Binary files a/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png and b/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png differ